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Topic: Can anyone explain me this question  (Read 3531 times)

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Offline gons

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Can anyone explain me this question
« on: October 20, 2006, 10:17:44 PM »
Which is the acid salt of which the aqueous solution is basic?
1) NaHSO4
2) Na2So4
3) NaHCO3
4) Na2CO3
5) Mg(OH)2
6) MgCl(OH)

can anyone explain what is acid salt and what the word "aqueous solution is basic" mean
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Offline Bakegaku

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Re: Can anyone explain me this question
« Reply #1 on: October 20, 2006, 10:34:03 PM »
Hmm... I think something may have been lost in translation, but I think it's asking which chemicals have a pH of greater than 7 when dissolved in water.
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Offline Donaldson Tan

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Re: Can anyone explain me this question
« Reply #2 on: October 21, 2006, 01:41:38 PM »
An acid salt is a salt that is capable of acting as an acid - whether as a electron pair acceptor (lewis definiton) or a proton donor (bronsted definition)

However, this does not necessary mean the resultant solution is acidic because the acid salt can be a very weak acid and a strong base. This is especially true for acid salts derrived from dibasic and tribasic acids.
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